Le mardi 12 juin 2007 à 14:15 -0700, Enrique Rodriguez a écrit :
> On 6/12/07, Julien Vermillard <[EMAIL PROTECTED]> wrote:
> > ...
> > 1#
> > In DNS protocol, the RecordStore interface
> > http://tinyurl.com/2prg84
>
> I added your suggestion, re: generics and some minor Javadocs. I
> recently completed a Javadoc run on Kerberos and Change Password and
> DNS was on my TODO list. I'll step it up.
>
> > 2#
> > I made my minimal RecordStore for just resolving few hostname to IP
> > address. Be carefull, my knowledge of DNS is very low :)
> >
> > public Set getRecords(QuestionRecord question) throws Exception
> > System.err.println("My store ! : "+question);
> > Set<ResourceRecord> set=new HashSet<ResourceRecord>();
> > HashMap<String, Object> attr= new HashMap<String, Object>();
> > attr.put(DnsAttribute.DOMAIN_NAME,"mydomaine.net");
> > attr.put(DnsAttribute.IP_ADDRESS,"192.168.66.66");
> > attr.put(DnsAttribute.TYPE,"IN");
> > attr.put(DnsAttribute.CLASS,"A");
> > ResourceRecord rr=new ResourceRecordImpl("totoz.net",
> > RecordType.A,RecordClass.IN,10000,attr);
> > set.add(rr);
> > return set;
> > }
> >
> > dig report me "corrupted reply".
> >
> > Any idea of what I'm doing wrong ?
>
> Just eyeballing it, the only thing in 'attr' should be IP address.
> The rest is redundant (and domain name conflicts) with the info put
> into the RR constructor.
>
> What is your dig statement? If you query for "mydomaine.net" but are
> returning "totoz.net" that could give you a problem. With the above
> code you should be dig'ing:
>
> $ dig totoz.net
>
> and getting "192.168.66.66".
>
> Your reply could also be corrupted if UDP/TCP isn't being handled
> properly. Our DNS provider doesn't have TCP support, though it is
> trivial to add with MINA. TCP uses a 2-byte pre-pended size, which
> could be throwing off the client-side decode.
>
> Enrique
I use a DatagramAcceptor
I made that test :
Set<ResourceRecord> set=new HashSet<ResourceRecord>();
HashMap<String, Object> attr= new HashMap<String, Object>();
attr.put(DnsAttribute.IP_ADDRESS,"192.168.66.66");
ResourceRecord rr=new
ResourceRecordImpl("totoz.net",RecordType.A,RecordClass.IN,10000,attr);
set.add(rr);
return set;
dig result :
:~$ dig @192.168.0.228 -p 10053 www.totoz.net
Warning: Message parser reports malformed message packet.
; <<>> DiG 9.3.4 <<>> @192.168.0.228 -p 10053 www.totoz.net
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23978
;; flags: qr rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0
;; QUESTION SECTION:
;www.totoz.net. IN A
;; Query time: 11 msec
;; SERVER: 192.168.0.228#10053(192.168.0.228)
;; WHEN: Wed Jun 13 11:04:24 2007
;;
The binary dump of query and the reply :
http://rafb.net/p/Qb1QSm95.html
Julien
I'm going to look in the codec, I prolly missed something.
